The red scare following world war i was caused primarily by

The Red Scare meant that the people were scared that communism would come tot he US. The specific reason why the believed it would happen is that they were afraid of single communists in the United States, exercising their influence and causing the capitalist system to fall.

During the paleolithic, hominins grouped together in small societies such as bands, and subsisted by gathering  plants  and fishing, hunting or scavenging wild  animals. the paleolithic is characterized by the use of knapped stone tools, although at the time humans also used  wood  and bone tools.